As with any utilitarian item, value is dependent on condition! In good shape expect it to be worth above $300. Provinence, original box, and original papers would all increase the value.
50-500
what is the serial number ????
100-435 USD
50-500 uSD
1951
400 USD
70-73
100-400 USD
Mid 80s or so
100-400 USD or so
@ 49 years old
82